A high power source of electro-magnetic radiation having a multi-purpose housing is disclosed. The method and system include determining a first resistance of at least one of the plurality of magnetic elements. Optionally, stopwords for source-identified stories are transformed based on statistical analysis of parallel verified and un-verified transformations. In the case when frequency comb possessing a frequency pitch that is larger than frequency modulation that can be affected by electro-optic modulator, the phase correlation of the input waves is achieved by combined use of an electro-optical modulator and injection locking to a single or multiple slave lasers. The application of such a circuit to the detection of a dynamic disturbance. The in-vehicle electronic apparatus fixture bracket includes a retreat structure part allowing the in-vehicle electronic apparatus to retreat toward the front of the vehicle body when a dynamic load is inputted into the in-vehicle electronic apparatus.